Imaging apparatus with shake correction
First Claim
1. An imaging apparatus that includes a CMOS imaging device having a plurality of pixels arrayed in a matrix, and performs shake correction with respect to the imaging device, the imaging apparatus comprising:
- a shake detection unit configured to detect an amount of shake applied to the imaging device;
a correction drive unit configured to perform a shake correction drive of the imaging device so as to perform the shake correction;
a mechanical focal plane shutter arranged immediately in front of the imaging device and configured to perform an optical-path opening operation and an optical-path blocking operation for opening and blocking an optical path of light guided to the imaging device;
a timing signal generating unit configured to supply a predetermined reset signal to each of the pixels for each predetermined pixel line of the imaging device so as to start exposure on the imaging device; and
a control unit configured to control exposure of the imaging device, wherein, at the time of shooting, the control unit is configured to determine whether shake correction of the imaging device is being performed, to execute an electronic shutter control for starting exposure on the imaging device by the reset signal supplied to each of the pixels from the timing signal generating unit, when it is determined that shake correction of the imaging device by the correction drive unit is being performed, and to execute a mechanical shutter control for starting exposure on the imaging device by the optical-path opening operation by the mechanical focal plane shutter, when it is determined that shake correction of the imaging device by the correction drive unit is not being performed.
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Accused Products
Abstract
In an imaging apparatus with a shake correction function, the influence of front curtain shock is prevented from being exerted on a shake correction function section (shake correction drive). The imaging apparatus includes a shake detection sensor 171 that detects an amount of shake applied to a digital camera, a shake correction unit 200 that performs a shake correction drive of an imaging device 101 on the basis of a shake amount detection signal, a shutter unit 40 that is arranged immediately in front of the imaging device 101 and performs an optical-path opening operation and an optical-path blocking operation for opening and blocking an optical path of light guided to the imaging device 101, a timing control circuit 51 that supplies a predetermined reset signal to each pixel for each predetermined pixel line so as to start exposure on the imaging device 101, and a shutter control section 623 that controls exposure of the imaging device 101. At the time of shooting, the shutter control section 623 executes an electronic shutter control (electronic focal plane shutter) for starting exposure on the imaging device 101 by means of the reset signal supplied to each pixel from the timing control circuit 51.
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Citations
9 Claims
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1. An imaging apparatus that includes a CMOS imaging device having a plurality of pixels arrayed in a matrix, and performs shake correction with respect to the imaging device, the imaging apparatus comprising:
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a shake detection unit configured to detect an amount of shake applied to the imaging device; a correction drive unit configured to perform a shake correction drive of the imaging device so as to perform the shake correction; a mechanical focal plane shutter arranged immediately in front of the imaging device and configured to perform an optical-path opening operation and an optical-path blocking operation for opening and blocking an optical path of light guided to the imaging device; a timing signal generating unit configured to supply a predetermined reset signal to each of the pixels for each predetermined pixel line of the imaging device so as to start exposure on the imaging device; and a control unit configured to control exposure of the imaging device, wherein, at the time of shooting, the control unit is configured to determine whether shake correction of the imaging device is being performed, to execute an electronic shutter control for starting exposure on the imaging device by the reset signal supplied to each of the pixels from the timing signal generating unit, when it is determined that shake correction of the imaging device by the correction drive unit is being performed, and to execute a mechanical shutter control for starting exposure on the imaging device by the optical-path opening operation by the mechanical focal plane shutter, when it is determined that shake correction of the imaging device by the correction drive unit is not being performed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of performing shake correction with respect to an imaging device having a plurality of pixels arrayed in a matrix, the method comprising:
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detecting an amount of shake applied to the imaging device; performing a shake correction drive of the imaging device so as to perform the shake correction; performing an optical-path opening operation and an optical-path blocking operation for opening and blocking an optical path of light guided to the imaging device; generating a timing signal for supplying a predetermined reset signal to each of the pixels in each predetermined pixel line of the imaging device so as to start exposure on the imaging device; and controlling exposure of the imaging device by, upon shooting an image, determining whether shake correction of the imaging device is being performed, executing an electronic shutter control for starting exposure on the imaging device by the reset signal supplied to each of the pixels when it is determined that shake correction of the imaging device is being performed, and executing a mechanical shutter control for starting exposure on the imaging device by the optical-path opening operation by the mechanical focal plane shutter when it is determined that shake correction of the imaging device is not being performed.
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9. A non-transitory computer-readable medium encoded thereon with a program that, when executed by a computer, causes the computer to perform a method of performing shake correction with respect to an imaging device having a plurality of pixels arrayed in a matrix, the method comprising:
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detecting an amount of shake applied to the imaging device; performing a shake correction drive of the imaging device so as to perform the shake correction; performing an optical-path opening operation and an optical-path blocking operation for opening and blocking an optical path of light guided to the imaging device; generating a timing signal for supplying a predetermined reset signal to each of the pixels for each predetermined pixel line of the imaging device so as to start exposure on the imaging device; and controlling exposure of the imaging device by, upon shooting an image, determining whether shake correction of the imaging device is being performed, executing an electronic shutter control for starting exposure on the imaging device by the reset signal supplied to each of the pixels when it is determined that shake correction of the imaging device is being performed, and executing a mechanical shutter control for starting exposure on the imaging device by the optical-path opening operation by the mechanical focal plane shutter when it is determined that shake correction of the imaging device is not being performed.
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Specification